Stereospermum colais from CBD Belapur hills

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Prashant awale

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Jun 12, 2010, 9:37:13 AM6/12/10
to indiantreepix
Dear Friends,
Came across Stereospermum colais at CBD Belapur hills.

Bot. name:
Stereospermum colais
Family:
Bignoniaceae
Date/Time: 12-06-2010/ 09:10AM
Location: CBD Belapur hills, Navi Mumbai.

regards
Prashant
IMG_7542c.jpg
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tanay bose

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Jun 12, 2010, 9:56:32 AM6/12/10
to Prashant awale, indiantreepix
The pictures are so nicely taken from every angle consisting all available parts identification and authentication becomes really easy!!
Thanks for sharing !!
Keep it up
Tanay

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Rashida Atthar

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Jun 12, 2010, 10:15:23 AM6/12/10
to tanay bose, Prashant awale, indiantreepix
Prashant ji this should be S. personatum (Hassk.) Chatterjee. I find the 4th pic leaves different from the 3rd pic. Is it a variation? Saw the same flowering at CEC  yesterday, uploading the same separately.

regards,
Rashida.

Prashant awale

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Jun 12, 2010, 11:39:44 AM6/12/10
to Rashida Atthar, tanay bose, indiantreepix
Dear Rashida ji,
Leaves are of same plant. Slight variation.
regards
Prashant

Rashida Atthar

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Jun 12, 2010, 11:44:35 AM6/12/10
to Prashant awale, tanay bose, indiantreepix
Thanks for the info. Prashant ji.

regards,
Rashida.

Satish Phadke

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Jun 12, 2010, 12:19:57 PM6/12/10
to Prashant awale, indiantreepix
Dear Prashant and Rashida
There appear to be some variations in different floras.
I think we have discussed this earlier when I had posted images from Pune.(Last flowers at present of this season)
According to BSI Flora Maharashtra. S.colais is synonymous with S.personatum.
So I think you are right. The genus Stereospermum has been divided as per following key.
Stereospermum Cham.
1.  Panicle branches viscid hairy                              ...               ...                S.chelenoides
2.  Panicle branches glabrous :
     2.  Leaflets caudate at apex; corolla wooly at base    ...             ...                      S.colais
                                                                                        var. colais
     2.  Leaflets acuminate at apex; corolla not wooly at base   ...                             S. colais
var.angustifolium
On studying various pictures I think Prashant's plant has acuminate leaflets and corolla not wooly.....so it is likely to be S.colais var angustifolium.
Regarding Rashida ji's plants. I think the leaflets of the plant from Mumbai are clearlly caudate and those from Anshi have different apex of the leaflet(Not classic caudate)
Again I suppose main importance is given to the wooliness at the base of corolla which is difficult to percieve. Will get help from Rahida ji about key from Almeida's flora.
Regards
Dr Phadke

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Prashant awale

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Jun 12, 2010, 12:21:44 PM6/12/10
to Satish Phadke, indiantreepix
Thanks Satish ji for the info.
regards
Prashant
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